JScriptCodeDom.CodeParseException: Unexpected Keyword:delete , Line 1, Char 894 ---> System.Exception: Unexpected Keyword:delete
   at JScriptCodeDom.CodeParser.ParseLazyExpressionCore(Boolean bthrowerr)
   at JScriptCodeDom.CodeParser.ParseLazyExpression(Boolean bthrowerr)
   at JScriptCodeDom.CodeParser.ParseQuoteExpression()
   at JScriptCodeDom.CodeParser.ParseLazyExpressionCore(Boolean bthrowerr)
   at JScriptCodeDom.CodeParser.ParseLazyExpression(Boolean bthrowerr)
   at JScriptCodeDom.CodeParser.ParseQuestionExpression(CodeExpression leftexp)
   at JScriptCodeDom.CodeParser.ContinueExpressionCore(CodeExpression leftexp)
   at JScriptCodeDom.CodeParser.ContinueExpression(CodeExpression leftexp)
   at JScriptCodeDom.CodeParser.ParseFullExpression(Boolean bthrowerror)
   at JScriptCodeDom.CodeParser.InternalParseStatementCore()
   at JScriptCodeDom.CodeParser.InternalParseStatement()
   at JScriptCodeDom.CodeParser.ParseStatement()
   at JScriptCodeDom.CodeParser.ParseFunctionExpression()
   at JScriptCodeDom.CodeParser.ParseLazyExpressionCore(Boolean bthrowerr)
   at JScriptCodeDom.CodeParser.ParseLazyExpression(Boolean bthrowerr)
   at JScriptCodeDom.CodeParser.ParseFullExpression(Boolean bthrowerror)
   at JScriptCodeDom.CodeParser.InternalParseStatementCore()
   at JScriptCodeDom.CodeParser.InternalParseStatement()
   at JScriptCodeDom.CodeParser.ParseStatement()
   at JScriptCodeDom.CodeParser.ParseFunctionExpression()
   at JScriptCodeDom.CodeParser.ParseLazyExpressionCore(Boolean bthrowerr)
   at JScriptCodeDom.CodeParser.ParseLazyExpression(Boolean bthrowerr)
   at JScriptCodeDom.CodeParser.ParseQuoteExpression()
   at JScriptCodeDom.CodeParser.ParseLazyExpressionCore(Boolean bthrowerr)
   at JScriptCodeDom.CodeParser.ParseLazyExpression(Boolean bthrowerr)
   at JScriptCodeDom.CodeParser.ParseFullExpression(Boolean bthrowerror)
   at JScriptCodeDom.CodeParser.InternalParseStatementCore()
   at JScriptCodeDom.CodeParser.InternalParseStatement()
   at JScriptCodeDom.CodeParser.ParseStatement()
   at JScriptCodeDom.CodeParser.ParseToBlock(CodeBlock block)
   at JScriptCodeDom.CodeParser.ParseIfStatement()
   at JScriptCodeDom.CodeParser.InternalParseStatementCore()
   at JScriptCodeDom.CodeParser.InternalParseStatement()
   at JScriptCodeDom.CodeParser.ParseStatement()
   at JScriptCodeDom.CodeParser.Parse(String code)
   --- End of inner exception stack trace ---
   at JScriptCodeDom.CodeParser.Parse(String code)
   at JScriptProtector.Protector.Protect(String[] codes)
   at Jsps._Default.Button1_Click(Object sender, EventArgs e)